Pith Number

pith:AQGPLQFR

pith:2011:AQGPLQFRDFLQC23LLV6JKB46VH

not attested not anchored not stored refs pending

The Object Projection Feature Estimation Problem in Unsupervised Markerless 3D Motion Tracking

Alejandro J. Le\'on, Luis Quesada

arxiv:1111.3969 v2 · 2011-11-16 · cs.CV · cs.GR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AQGPLQFRDFLQC23LLV6JKB46VH}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:08:04.804378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

040cf5c0b11957016b6b5d7c95079ea9d21abda98395fbaecb124a7039d5194e

Aliases

arxiv: 1111.3969 · arxiv_version: 1111.3969v2 · doi: 10.48550/arxiv.1111.3969 · pith_short_12: AQGPLQFRDFLQ · pith_short_16: AQGPLQFRDFLQC23L · pith_short_8: AQGPLQFR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/AQGPLQFRDFLQC23LLV6JKB46VH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 040cf5c0b11957016b6b5d7c95079ea9d21abda98395fbaecb124a7039d5194e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d49579d2daaefb3fca543e6de64d331821e2d57fc44a66d4a3aeeace4f508b0",
    "cross_cats_sorted": [
      "cs.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2011-11-16T21:26:55Z",
    "title_canon_sha256": "4c5991827a4e89fd8cc944865015aa0d3408a6de226d8ae76256fc0718b0caf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.3969",
    "kind": "arxiv",
    "version": 2
  }
}